81518820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1358647}}^1$

素因数の和:1358659

約数の個数: 24

約数和(自身を含む): 228252864

約数和(自身を除く): 146734044

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1358647, 2717294, 4075941, 5434588, 6793235, 8151882, 13586470, 16303764, 20379705, 27172940, 40759410, 81518820]

約数ペア:

[(1, 81518820), (2, 40759410), (3, 27172940), (4, 20379705), (5, 16303764), (6, 13586470), (10, 8151882), (12, 6793235), (15, 5434588), (20, 4075941), (30, 2717294), (60, 1358647)]